TY  - JOUR
AU  - Ursin, R.
AU  - Tiefenbacher, F.
AU  - Schmitt-Manderbach, T.
AU  - Weier, H.
AU  - Scheidl, T.
AU  - Lindenthal, M.
AU  - Blauensteiner, B.
AU  - Jennewein, T.
AU  - Perdigues, J.
AU  - Trojek, P.
AU  - Ömer, B.
AU  - Fürst, M.
AU  - Meyenburg, M.
AU  - Rarity, J.
AU  - Sodnik, Z.
AU  - Barbieri, C.
AU  - Weinfurter, H.
AU  - Zeilinger, A.
PY  - 2007
DA  - 2007//
TI  - Entanglement-based quantum communication over 144km
T2  - Nat. Phys.
JO  - Nature Physics
SP  - 481
EP  - 486
VL  - 3
IS  - 7
KW  - fromIPMRAS
AB  - Quantum entanglement is the main resource to endow the field of quantum information processing with powers that exceed those of classical communication and computation. In view of applications such as quantum cryptography or quantum teleportation, extension of quantum-entanglement-based protocols to global distances is of considerable practical interest. Here we experimentally demonstrate entanglement-based quantum key distribution over 144km. One photon is measured locally at the Canary Island of La Palma, whereas the other is sent over an optical free-space link to Tenerife, where the Optical Ground Station of the European Space Agency acts as the receiver. This exceeds previous free-space experiments by more than an order of magnitude in distance, and is an essential step towards future satellite-based quantum communication and experimental tests on quantum physics in space.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=797), last updated on Wed, 09 May 2012 11:37:54 -0500
ID  - Ursin_etal2007
ER  -